72 CRETACEOUS GASTROPODA 
XII. GOSAVIA, Stoliczka, 1865. 
Sitzungsberichte k. Akademie der Wissenschaften, Wien. Vol. LII, Revision. p. 76. 
Gos. testa convoluta, spira turbinata, ultimo anfractu inverse-conico ; apertura 
angusta elongataque, basi emarginata; labro prope suturam imsinuato, labio plicoso, 
plicis anterioribus fortioribus. 
The characteristic distinction of the genus Gosavia, which has been proposed 
by me in the revision of the Gosau Gastropoda (1865, loc. cit.) for a species previ- 
ously described by Zekeli as Voluta squamosa, consists in the plication of the inner 
lip. The form of the shell is quite similar to that of a Conus, and also the notch 
of the outer lip near the posterior suture, when compared, for instance, with Conus 
marmoreus and others. The spiral striation seems to be rather peculiar, although 
indicated in afew species of Conus. The folds belong to the callosity of the inner lip, 
and have nothing to do with the striation, so that through this development a certain 
transition seems to be formed from the Coyzpm to the Vorurmsz, Attaching 
eveat importance to the characteristic form of the shell of a Conus, we think 
it rather more probable that the animal of Gosavia was more like that of a species 
of this family, than of the Vozurm or Przvrorourp.s, between both of which it 
seems to form a passage. 
The long-known C. tuberculatus is most nearly related, inits ornamentation, to 
Gosavia, but no plaits have as yet been observed on the columella of this species, 
although there is no positive proof that they do not exist. Our Indian fossil is the 
second known cretaceous species of this genus, the first above referred to, Gosaw. 
squamosa, having been described from the Alpine Gosau formation, which may be 
considered of about the same age as the cretaceous deposits of South India. Another 
eretaceous species which may belong to the genus is the Iitra Limburgensis, Bink- 
horst (Monog. foss. Limburg., p. 66, Pl. IT, Fig. 8); but this species, as described, has 
‘plaits only in the middle of the columellar lip, with a remarkably different kind of 
disposition, and has apparently no notch on the outer lip. 
I am not at present aware that either in European or American tertiary strata 
any species occur, which could justly be referred to this genus, but it seems to have 
been much more numerously represented in the older tertiary beds of India, It is 
not improbable that the existence of several species in European tertiaries also, 
may, after a time, be established. Any person who has given attention to this 
matter will have seen, that the greatest care is required in the preparation of a 
specimen in order not to injure the columellar plaits. It would indeed necessitate 
the admission of no ordinary succession of phenomena, if it were really a fact, that 
forms which existed during the cretaceous period both in Europe and India, should 
have so largely increased in number in the latter portion of the earth’s surface, while ‘ 
they disappeared altogether from the former, although at the same time the eocene 
faunze of both countries afford many very striking similarities, and not a few specific 
identities. 
